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Friday, May 8, 2020 | History

2 edition of On the hardening of steel found in the catalog.

On the hardening of steel

F. Wever

On the hardening of steel

with special reference to transformation kinetics.

by F. Wever

  • 27 Want to read
  • 31 Currently reading

Published by Brutcher .
Written in English


Edition Notes

Translated fromStahl und Eisen, vol. 69, 1949, p.664-670.

ID Numbers
Open LibraryOL19936920M

  The equation describing the rate of work hardening is, where s is the true stress, K is a material constant, e is the true strain and n is the work hardening exponent.A nigh n-value means a higher rate of strain hardening. In contrast to the zero work hardening capability described above, sheetmetal with work hardening has a drastically different deformation sequence. If you ever came across to a mild steel, then you probably wondered how to harden this piece of metal. It’s very interesting to see mild steel that you can give whatever shape you want. Things get interesting when it's about hardening are various ways to harden mild steel.

A Simplified Guide to Heat Treating Tool Steels Quenching Quenching must be done promptly in the medium prescribed for the grade with the exceptions discussed further. Actually, Water Hardening steels are properly quenched in brine. A pound of salt to a gallon of water is a good guide. Annealing Air Hardening Steel: The cooling rate is very critical. The book says 40°F/h from That's hours at a steady rate to still be °F. The non-magnetic point being °F appears to be too low to anneal.

We will now take up the matter of hardening high-speed steels. The most ordinary tools used are for lathes and planers. The forging should be done at carbon-steel heat. Rough-grind while still hot and preheat to about carbon-steel hardening heat, then heat . Flame hardening is a heat treating process in which a thin surface shell of a steel part is heated rapidly to a temperature above the critical temperatures of the steel. The versatility of flame-hardening equipment and the wide range of heating conditions obtainable with gas burners, often permit flame hardening to be done by a variety of methods.


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On the hardening of steel by F. Wever Download PDF EPUB FB2

Excerpt from Hardening, Tempering, Annealing and Forging of Steel: A Treatise on the Practical, Treatment and Working of High and Low Grade Steel In preparing this treatise the author has had as an incitement the knowledge that there was very little information to be had on the treatment and working of steel of practical value to the general mechanic/5(6).

Surface Hardening of Steels: Understanding the Basics [J. Davis, J. Davis] on *FREE* shipping on qualifying offers. Surface Hardening of Steels: Understanding the BasicsCited by: Hardening in particular took time for me to perfect or at least get to the point where it was working.

With this book I was able to harden tools and screwdriver bits easily. I would say this book is better suited to the beginner or those unsure. It helped me refine the technique and it may help you too/5().

Hardening, tempering, annealing and forging of steel ;: A treatise on the practical treatment and working of high and low grade steel Woodworth, Joseph Vincent Published by Lindsay Pub ().

Heat-Treatment of Steel: A Comprehensive Treatise on the Hardening, Tempering, Annealing and Casehardening of Various Kinds of Steel, Including High-Speed, High-Carbon, Alloy and Low-Carbon Steels, Together with Chapters on Heat-Treating Furnaces and on H/5(4).

Case hardening is defined as a process by which a ferrous material is hardened in such a manner that the surface layer, known as the case, becomes substantially harder than the remaining material, known as.

Surface Hardening of Steels: Understanding the Basics is a practical selection guide to help engineers and technicians choose the optimum surface hardening treatment for a given application from an ever increasing number of options.

Emphasis is placed on. Steel used for any element of a bearing must possess the following properties: appropriate hardness, high fatigue strength, wear resistance and high stability at high temperature. Bearings are mostly made of either through hardened steel and case hardening steel.

The through hardening steel has some carbon and –% of chromium. Hardening, Tempering, Annealing and Forging of Steel: A Treatise on the Practical Treatment and Working of High and Low Grade Steel Comprising.P. Book.

Seller Inventory # BBS More information about this seller | Contact this seller Tensile properties are the most affected and Fig. shows work-hardening curves for aluminium and the alloys (Al–Mn) 2 and (Al–Mg), the latter two being representative of the main classes of non-heat-treatable alloys.

Cold working causes an initial rapid increase in yield strength, or proof stress, after which the increase is more gradual and roughly equals the change in.

This vintage book contains a comprehensive treatise on the hardening, tempering, annealing, and case-hardening of various kinds of steel, including high-speed, high-carbon, alloy, and low carbon steels. "Heat-Treatment of Steel" is highly recommended for Brand: Read Books Ltd. Any steel that exhibits strain-aging will automatically exhibit bake hardening but the commonly used bake-hardening steels are based on solid solution-strengthened steels.

Their chemistry or processing is modified, if necessary, to leave sufficient carbon in solution after annealing to give the bake hardening. Basic transformation characteristics of heat-treated steels are reviewed.

The article also discusses the various aspects of steel heat treatment by induction processing, and concludes with a description of steel alloys for induction processing. The as-received Q&P steel has a dual phase microstructure consisting of martensite and retained austenite, as shown in Fig.

1a and 1b. Fig. 2 illustrates the true stress-strain curves up to necking and the corresponding work hardening rates at s − 1 and s − yield strength increases from about MPa to MPa with increasing strain : M.

Wang, M.X. Huang. It is interesting to note that the strain-hardening rate of the 30Mn3Al3Si steel is similar to that of L austenitic steel, while the strain-hardening rate of high nitrogen austenitic stainless steel has a very high strain-hardening rate similar to the TWIP steels containing carbon (30MnC) [24,25].Author: Z.C.

Luo, M.X. Huang. Hardening Hardening involves heating of steel, keeping it at an appropriate temperature until all pearlite is transformed into austenite, and then quenching it rapidly in water or oil.

The temperature at which austentizing rapidly takes place depends upon the carbon content in the steel used. Hardening is a metallurgical metalworking process used to increase the hardness of a metal.

The hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain.

A harder metal will have a higher resistance to plastic deformation than a less hard metal. In general it may be said that the best hardening temperature for carbon steel is the lowest temperature at which it will harden properly. CARBON IN TOOL STEEL Carbon tool steel, or "tool steel" as it is commonly called, usually contains from 80 to points (or from to per cent) of carbon, and none of the alloys which go to make up.

Authors of papers on the restoration by heat treatment of faulty steel will hardly be prepared to acquiesce in a statement made by Mr.

Woodworth on p. 18 of his book, namely, Hardening Author: J. Arnold. Surface Hardening of Steels: Understanding the Basics is a practical selection guide to help engineers and technicians choose the most efficient surface hardening techniques that offer consistent and repeatable results.

Emphasis is placed on characteristics such as processing temperature, case/coating thickness, bond strength, and hardness level obtained. I noticed in the library section a book on Hardening, Tempering, Annealing & Forging Steel () J.

Woodworth. I was wondering if there’s a book that is more up to date? There have been many changes in steel manufacturing since I would like a book on the above processes that include the steels used today.Hardening Guide The way to the perfect knife steel Hardening is a way of making the steel harder.

By first heating the steel to between. and °C and then quenching it, the material will become much harder by the microstructure being transformed into hard and wear resistant martensite.Containing recent data and developments from international experts, the Steel Treatment Handbook discusses the principles of heat treatment; quenchants, quenching systems, and quenching technology; strain gauge procedures, X-ray diffraction, and other residual stress measurement methods; carburizing and carbonitriding; powder mettalurgy technology; metallography and physical property determination; /5(5).